Multi-Source Headlamp Module for Bad-Weather Color Overlap
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Solution Overview
Problem
Traditional LED headlamps generate high color temperature white light that is ineffective in bad weather conditions, requiring drivers to use fog lights for safety, which are often not standard equipment and costly to retrofit.
Innovation Solution
An illumination module with multiple light sources, including a first and second light source generating different colors, such as white and yellow, that overlap to improve visibility in adverse weather, integrated into a vehicle lamp housing, allowing for adjustable lighting modes via a control circuit and switch.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Illumination intensity
If LED headlamps generate high color temperature white light, then brightness and energy efficiency are improved, but lighting effectiveness in bad weather deteriorates
Solution Approach 1:
The headlamp system is segmented into multiple independent light sources with different color temperatures. The control circuit can selectively activate specific light sources (e.g., yellowish-white LEDs for bad weather, bluish-white LEDs for clear weather) based on environmental conditions, allowing optimized lighting performance for different scenarios without compromising overall brightness capability
Solution Approach 2:
The illumination characteristics of the headlamp are made dynamic and adjustable. The control circuit enables switching between different lighting modes (e.g., bad weather mode with yellowish-white light, clear weather mode with bluish-white light) based on real-world conditions, transforming the static single-color LED system into a dynamically adaptable multi-color lighting system
2Reliability
If fog lights are installed as separate additional equipment, then lighting effectiveness in bad weather is improved, but device complexity and installation cost increase
Solution Approach 1:
The fog light functionality is merged into the existing headlamp assembly. By integrating multiple light sources with different color characteristics into a single headlamp unit and using a common lens for optical control, the system eliminates the need for separate fog light installations while achieving both headlamp and fog light functions in one integrated device
Solution Approach 2:
The headlamp system is designed with multi-functionality to perform both standard headlamp illumination and fog light functions. The same optical components (lens, reflector) serve multiple purposes, and the control circuit manages different lighting modes, allowing one device to replace what would traditionally require multiple separate components
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
Enhances safety by providing effective lighting in bad weather conditions without the need for additional fog lights, improving visibility and reducing installation costs through a modular design that can replace standard headlamps.
Implementation Method 1
The lens unit projects the first color light and the second color light to the front of the illumination module with multi light sources
Data Source
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AI summary
The present invention is an illumination module with multi light sources includes at least one lens unit, at least one first light source and at least one second light source. The first light source is configured to generate a first color light, and project the first color light to the lens unit. The second light source is configured to generate a second color light, and project the second color light to the lens unit. The lens unit projects the first color light and the second color light to the front of the illumination module with multi light sources, such that the first color light and the second color light partially or fully overlap.